.tank{
	position:relative;
	margin:50px;
}

.tank .middle{
	width:120px;
	height:180px;
	border-left-width: 3px;
	border-right-width: 3px;
	border-top-width: 0px;
	border-bottom-width: 0px;
	border-style: solid;
	position:absolute;
}

.tank .top{
	width: 120px;
	height: 50px;
	border: 3px solid;
	-moz-border-radius: 60px / 25px;
	-webkit-border-radius: 60px / 25px;
	border-radius: 60px / 25px;
	position:absolute;
	top:-25px;
	background: #968e8e;

}

.tank .bottom{
	width: 120px;
	height: 50px;
	border: 3px solid;
	-moz-border-radius: 60px / 25px;
	-webkit-border-radius: 60px / 25px;
	border-radius: 60px / 25px;
	position:absolute;
	top:155px;
	background: #968e8e;

}